package com.sxm.indoormanagement.component;


import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author 780013490@qq.com  孙小明
 * @version 1.0
 * @date 2020/3/1 1:17
 * @description
 */


public class LoginHandlerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object user = request.getSession().getAttribute("loginUser");
        if (user == null) {
            //未登陆，返回登陆页面
            request.getRequestDispatcher("/login.html").forward(request, response);
            return false;
        } else {
            //已登陆，放行请求
            return true;
        }


    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
/*   @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object user = request.getSession().getAttribute("loginUser");
        if (user == null) {
            //未登陆，返回登陆页面
//            request.setAttribute("msg", "没有权限请先登陆");
            request.getRequestDispatcher("/index.html").forward(request, response);
            return false;
        } else {
            //已登陆，放行请求
            return true;
        }

    }

    */
}
